Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Solutions question

2022 · 25 Jun · Shift 2 · Q3
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Solutions
  5. /2022 · 25 Jun · Shift 2 · Q3

Solutions question

2022 · 25 Jun · Shift 2 · Q3

JEE MainChemistrySolutionsMCQ+4 / −1
Solute A associates in water. When 0.7 g of solute A is dissolved in 42.0 g of water, it depresses the freezing point by 0.2 ∘^\circ∘ C. The percentage association of solute A in water, is : [Given : Molar mass of A = 93 g mol −-− 1. Molal depression constant of water is 1.86 K kg mol −-− 1.]
  1. A
    50%
  2. B
    60%
  3. C
    70%
  4. D
    80%
PreviousNext

More from Solutions

  • The elevation in boiling point for 1 molal solution of non-volatile solute A is 3 K. The depression in freezing point for 2 molal solution of A in the same solvent is 6 K. The ratio of Kb​ and Kf​ i.e., Kb​/Kf​…2022 · Numerical
  • A 0.5 percent solution of potassium chloride was found to freeze at − 0.24 ∘ C. The percentage dissociation of potassium chloride is ​. (Nearest integer) (Molal depression constant for water is 1.80 K kg…2022 · Numerical
  • The osmotic pressure exerted by a solution prepared by dissolving 2.0 g of protein of molar mass 60 kg mol − 1 in 200 mL of water at 27 ∘ C is ​ Pa. [integer value] (use R = 0.083 L bar mol − 1 K − 1)2022 · Numerical
  • Boiling point of a 2% aqueous solution of a non-volatile solute A is equal to the boiling point of 8% aqueous solution of a non-volatile solute B. The relation between molecular weights of A and B is2022 · MCQ
  • When a certain amount of solid A is dissolved in 100 g of water at 25∘C to make a dilute solution, the vapour pressure of the solution is reduced to one-half of that of pure water. The vapour pressure of pure…2022 · Numerical
  • Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : At 10 ∘ C, the density of a 5 M solution of KCl [atomic masses of K & Cl are 39 & 35.5 g mol − 1…2022 · MCQ
  • 2 g of a non-volatile non-electrolyte solute is dissolved in 200 g of two different solvents A and B whose ebullioscopic constants are in the ratio of 1 : 8. The elevation in boiling points of A and B are in the ratio yx​ (x :…2022 · Numerical
  • A solution containing 2.5 × 10 − 3 kg of a solute dissolved in 75 × 10 − 3 kg of water boils at 373.535 K. The molar mass of the solute is ​ g mol − 1. [nearest integer] (Given : Kb(H2​O) =…2022 · Numerical